Aqua Medic Premium Line 190 Mode D'emploi page 9

- Pre-filter: If the tap water is not extremely polluted, a yearly replacement of both pre-filters will be
sufficient. If the water is higher polluted, the filters have to be changed more often - as required. If
the pre-filter is blocked, the water production will slow down.
- Membrane: The membrane has a lifetime of several years. Afterwards, it has to be replaced.
- Flushing valve: The flushing valve is a part with limited lifetime. In case of a decrease of the
adjusted water flow, the valve is encrusted with calcium and can be cleaned using acid (e. g. vinegar).
If the water flow increases, the valve has to be replaced.
5. Failures
- Waste water flow rate is too high: Close the flushing valve. If this is not possible, the flushing
valve has to be replaced and the membrane power to be checked.
- Waste water flow rate is too low: Check if the pre-filter is blocked. The water pressure at the
pressure gauge behind the pre-filters must not be much lower (at the most 0.5 bar) than the water
supply pressure. Maybe change the pre-filter.
- Pure water flow rate is too low: Check the waste water flow rate. If it is to low too, change the
pre-filter.
- Tap water pressure is too low: If you are connected to a municipal water supply, you are not able
to have an influence on the water pressure. For the reverse osmosis unit, a minimum water pressure
of 3 bar is required.
- Module is blocked or used up: The membrane has to be replaced. As spare parts, all standard „18"
membranes with a daily capacity of 75 - 90 / 120 - 150 l can be used. Only TFC-membranes made of
polyamide/polysulfone should be used. We recommend to use original Aqua Medic TFC-membranes
only.
If you want to use a membrane with a different capacity, you also have to change the flushing valve.
- Rejection rate is too low: Check the water flow rates (waste water, pure water). If the water flow is
ok, flush the unit for approx. 60 min. If the rejection rate increases, go on flushing until the value is
acceptable. If the rate does not improve, change membrane.
6. Important Notes
- Connection: Connect the reverse osmosis unit to cold water supply only. Higher temperatures
increase pure water production but at temperatures more than 40 °C, the membrane will be
destroyed.
- Stopping the unit: If you stop the unit, always close tap water supply. Never only close the pure
water tap. If you run the unit automatically with a solenoid valve, switch the valve between pre-filter
and module. Take care that waste water and pure water can flow away freely.
- Disconnection of the unit: If you want to disconnect the unit for a longer period than 6 weeks, you
should add Aqua Medic disinfection liquid into the module housing. If the unit is started again, flush it
for 15 to 20 minutes. We recommend flushing also after shorter periods of stopping, if no disinfection
liquid has been used.
- Storage: The unit has to be stored at temperatures above 0°C. Freezing would destroy the
membrane.
7. Warranty
Should any defect in materials or workmanship be found within 24 months of the date of purchase AB
Aqua Medic undertakes to repair, or at our option replace, the defective part free of charge – always
provided the product has been installed correctly, is used for the purpose that was intended by us, is
used in accordance with the operating instructions and is returned to us carriage paid. Proof of Purchase
is required by presentation of the original invoice or receipt indicating the dealer's name, the model
number and date of purchase. This warranty may not apply if any model or production number has been
altered, deleted or removed, unauthorised persons or organisations have executed repairs, modifications
or alterations, or damage is caused by accident, misuse or neglect. Please note that the product is not
defective under the terms of this Warranty where the product, or any of its component parts, was not
originally designed and / or manufactured for the market in which it is used. These statements do not
affect your statutory rights as a customer.
AB Aqua Medic GmbH - Gewerbepark 24 - 49143 Bissendorf/Germany
Current manuals are available for download at www.aqua-medic.de.
- Technical changes reserved – 09/2018
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